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Test Code
ILGF1
Test Name
Insulin-Like Growth Factor Binding Protein 1
CPT Codes
83520
Expected Turnaround Time
6 - 12 days
Clinical Utility

This test is used to identify women who are at high risk for developing preëclampsia.
Specimen and Container Info

Specimen Type: Serum

Collection Container: Gold Top, Serum Separator

Alternate Collection Container: Red Top, Plain

Desired Specimen Volume: 0.5 mL
Collection Instructions
  1. Collect a gold top, serum separator tube via venipuncture
Processing and Submission Instructions
  1. Separate serum from cells.
  2. Transfer 0.5 mL of serum to a LabCorp PP transpak frozen purple tube.
  3. Freeze immediately and maintain frozen until tested.
  4. To avoid delays in turnaround time when requesting multiple tests on frozen samples, please submit separate frozen specimens for each test requested.
Transport Instructions

Transport to the laboratory frozen. 
Stability Requirements

Room Temperature

1 days

Refrigerated

2 days

Frozen

16 months

Freeze/Thaw Cycles

Stable x6
Causes for Rejection
  • Plasma specimens
Methodology
Immunochemiluminometric Assay (Icma)
Reference Intervals

See patient report.
Alternate Names
  • IGF-binding Protein 1
  • IGFBP-1
Reference Lab
Labcorp Of America Holdings
Testing Schedule
Routine, 2 times per week
The American Medical Association (AMA) Current Procedural Terminology (CPT) codes published by HNL Lab Medicine are guidelines and are intended for informational purposes only. CPT coding is the exclusive responsibility of the billing entity. View the Terms.
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